Pulp-screening machine.



.PATENTE-D JULY 19, 1904.

.0. s. BUGKLIN. PULP SCREENING MACHINE.

APPLICATION FILED OCT. 7, 1903.

2 SHEETS-SHEET 1.

H0 MODEL,

, PATENTED JULY 19, 1904.

0. SHBUGKLIN. PULP SCREENING MACHINE}.

APPLIUATION FILBD'OOITI; 7, 1903. v i

' SHEETS-SHEET 2.

N0 MODEL,

Patented July 19, 1904.

PATENT OFFICE.

CHARLES S. BUOKLIN, OF BALTIMORE, MARYLAND.

PULP-SCREENING MACHINE.

SPECIFICATION forming part of Letters Patent No. 765,551, dated July 19,1904.

Application filed October 7, 1903.

T (I/ZZ/ whom it may concern:

and fruit pulps, the object of my invention being to so construct such amachine as to provide for ready access to all parts of the sieve orscreen for cleansing or other purposes. This object I attain in themanner hereinafter set forth, reference being had to the accompanyingdrawings, in which Figure l is a plan View of apulp-screening machineconstructed in accordance with my invention. Fig. 2 is an end view ofthe same looking in the direction of the arrow m, Fig. 1. Fig. 3 is atransverse section of the machine on the line a a, Fig. 1, but showingthe hood or cover removed and the beater-shaft and beater withdrawn fromthe sieve. Fig. 4 is a view, partly in elevation and partly in section,on the line 7) b, Fig. 1; and Fig. 5 is a side elevation illustratinganother embodiment of one feature of my invention.

1 represents a framework upon which is suitably supported a semicircularsieve or screen 2, which may be either removable from the frame orrigidly confined thereto, as desired, this screen communicating at oneend with a feed-hopper 3 and having at the other end a delivery-opening4, provided with a suitable gate, so as to permit of the discharge fromthe screen of those portions of its contents which do not escape throughthe meshes.

Above the screen is a hood or cover 5, so shaped as to permit of thefree rotation within the same and within the sieve of a beaterconsisting of longitudinal blades 6, mounted by means of arms 7 upon alongitudinal shaft 8, the latter passing through recesses 9 in the endportions of the frame 1 and being adapted to bearingslO, which arecarried by arms 11, pivoted at their rear ends to pins 12, mounted insuitable plates 13, which are rigidly secured to the top members of theend Serial No. 176,099. (No 111M181;

frames of the machine. To other bearings 14 on other transverse bars ofthe fixed frame is adapted a driving-shaft 15, having fast and loosepulleys 16 and 17 for receiving the driving-belt, the inner end of thisshaft 15 having a disk 18, with notch 19 and inwardly-projecting stud20.

The driving-shaft 15 is axially in line with the shaft 8 when the latteris in operative positionthat is to say, when the beater occupies itsnormal position within the sieve 2 and hood 5and at such timethe notch19 of the disk 18 is engaged by a lug 21 on a disk 22, carried by thatend of the shaft 8 which adjoins the shaft 15, the lug 20 of the disk 18at the same time engaging a notch 23 of the disk 22, as shown in Fig. 4.Power is thus transmitted from the shaft 15 to the shaft 8 in order torotate the beater and cause agitation of the material within the sieve2, with the result that all of the liquid and the finer solid portionsof the same are caused to pass through the meshes of the sieve and arereceived in the tub 24 beneath the same, the

coarser particles remaining in the sieve to be subsequently dischargedtherefrom through the end delivery-opening 4.

When the operation has been completed, or when at any other time it isdesired to gain access to the sieve for cleansing or other purposes, theshaft 15 is turned so that its notch 19 is uppermost, whereupon afterthe removal of the hood 5 the beater and its shaft 8 can be swung clearof the sieve, as shown in Fig. 2, so as to permit unobstructed access toall parts of the interior of the latter or so as to permit removal ofthe sieve, if such removal is desired, the beater shaft and its beaterbeing swung back into position in the sieve with equal readiness whenthe cleansing, inspection, or repair of said sieve has been completed.

In order to retain the beater-shaft and beater firmly in position duringthe operation of the machine, the outer end of each arm 11 is notchedfor the reception of a swinging bolt 25, hung to a bracket 26 on one ofthe end frames and free to swing in a beveled slot 27 in said frame,said bolt having a nut 28 for bearing upon the top of the arm 11, andretaining the same in proper position. When the nut is loosened,however, the bolt 25 can be swung outward in the slot 27 and the arm 11thus freed from its control.

Although I prefer in all cases to use the swinging arms carrying thebearings for the beater-shaft, hearings to be lifted vertically in orderto remove the beater from the sieve may be employed, if desired, one ofsuch bearings being shown in Fig. 5, on reference to which it will beobserved that a pair of swinging bolts 25 are employed to secure thebearing in position after adjustment.

My invention is not restricted to the use of the self engaging anddisengaging clutch which I have shown for connecting the driving-shaftand beater-shaft of the machine, although the use of such a shaft ispreferred.

Having thus described my invention, I claim and desire to secure byLetters Patent 1. The combination, in a pulp-screening machine, of asieve, a heater, a beatershaft, means for lowering the beater-shaft intothe sieve and raising it therefrom, a driving-shaft, and a clutchingdevice self-engaging when the beater is lowered into the sieve, andself-detaching when the beater is raised from the sieve, substantiallyas specified.

2. The combination,in a pulp-screening machine, of a sieve, a beater, abeater-shaft removable from the sieve, and a driving-shaft in lineaxially with the beater-shaft when the latter is in operative positionin respect to the sieve, each shaft having a disk secured to itsrespective shaft and provided with peripheral notch and lateralprojection for engaging with the opposed parts of the other disk,substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES S. BUCKLIN.

I/Vitnesses:

F. E. BEoH'roLn, Jos. H. KLEIN.

